Understanding Multiwall Packaging: Benefits and Applications

August 23, 2024

Multi-wall packaging, a durable and versatile packaging material made from multiple layers of paper or other materials, plays a vital role in global commerce by providing reliable protection and efficient transportation for a wide range of products. Manufacturers of these containers ship over 3 billion multi-wall paper bags every year. 

As a leading manufacturer of multi-wall valve bags, Southern Packaging LP offers a wide selection of multi-wall packaging solutions designed to securely hold your flowable materials. In this comprehensive guide to multi-wall packaging, we cover their common uses and the benefits these cost-effective storage solutions provide.  

What Is Multi-wall Packaging?

Multi-wall packaging refers to a type of bag made from multiple layers of kraft paper. Manufacturers like Southern Packaging combine that paper with other materials to create a stronger product. 

The multi-wall bag manufacturing process typically involves several plies which are glued or stitched together. The layering process enhances the packaging’s strength and tear resistance. As a result, it becomes more suitable for storing heavy or abrasive products. 

The materials used in multi-wall packaging can vary based on your specific requirements. Southern Packaging LP typically uses natural or extensible kraft paper. We also employ specialty materials that provide additional barriers against moisture and contaminants, such as polyethylene or foil liners. 

Different Types of Multi-wall Paper Bags

Multi-wall paper bags come in several variations to suit a few different use cases. 

Pinch bottom open mouth bags (PBOM) have a pinch-bottom design and are used for high-end sensitive products that are best preserved with a lined bag. They are usually sealed with hot adhesive but can also be sewn closed.

Sewn open-mouth bags (SOM) are sealed with a sewing thread and are commonly used to store a range of dry flowable products. These tough, economical bags often become paper feed bags in the pet and agricultural space. 

Multi-wall paper pasted valve bags (PVSE) have a valve to allow for them to be machine filled with flowable dry products. When the bag is released from the packing machine, internal forces generated by the product in the bag cause the valve opening to self seal.  Multi-wall valve bags are often used in the construction industry for materials like cement, plaster, and other powdered materials. 

Self-Opening Satchel (SOS) bags are gusseted, flat-bottom containers that can stand unsupported for stable filling, stacking, and palletizing.

The satchel-bottom open mouth or “webb” bag merges features from both the SOS and PBOM bags. This bag has a square, satchel-style bottom for easy palletizing and transport. The open tops of these bags are closed and sealed by pinch bag closers that use a pre-applied hot-melt to create a sift proof closure.

Applications of Multi-wall Packaging

Many industries use multi-wall packaging products due to their versatility and durability. Here are some common uses for paper bags:

  • Agriculture: Multi-wall bags make great paper feed bags and are also used to package products like fertilizer, rice, and seed.
  • Construction: Pasted valve bags can be employed to store heavy and abrasive materials.
  • Food Industry: Multi-wall packaging can store products like flour, sugar, and whey protein. 
  • Chemicals and Minerals: Chemical companies can store a range of compounds and minerals in multi-wall containers.

Each industry will use a variation of the standard multi-wall bag to best meet its needs. For example, bags used for construction materials typically have a pasted valve design. 

Benefits of Multiwall Packaging

Multi-wall packaging provides advantages such as the following:

Durability and Strength 

The multiple layers of kraft paper used in multi-wall packaging provide exceptional strength and tear resistance. Our layering process makes our products suitable for heavy and bulky items, ensuring that the products are securely contained during transportation and storage. 

You can further enhance the strength of multi-wall packaging by investing in a version with additional layers. For example, bags with foil or polyethylene may offer better tear and rip resistance. 

Environmental Advantages

Paper products are biodegradable and can decompose in about two to six weeks, depending on soil conditions, moisture level, and other variables. They can disappear completely in around five months. 

In contrast, plastic bags take 10–20 years to decompose. They have a much bigger impact on the environment and can negatively affect plants, animals, and our ecosystem. If the bags end up in the ocean, they can also endanger sea life. 

Going green by switching to multi-wall paper bags can drastically reduce your company’s carbon footprint. You can also simplify recycling and material disposal processes, thereby decreasing back-end waste management costs. 

Cost-Effectiveness

Multi-wall paper bags from Southern Packaging LP are exceptionally cost-effective. We have several container options, each of which offers unique dimensions and features. The materials used are relatively inexpensive, and the durability of our bags reduces the risk of damage and loss during transit.

Our team can help you identify the ideal bags for your storage needs. We’ll review the benefits and capabilities of each type of packaging, ensuring that your products align with your expectations.  

Why Choose Southern Packaging?

With many years of experience in the packaging space, Southern Packaging LP is a leader in the multiwall packaging industry. Our wide range of high-quality products and our customization options mean we make it easy to obtain the right materials, sizes, and designs for your intended application. Most importantly, we adhere to strict quality control measures so that every bag meets the highest standards of durability and performance. 

If you are in the market for multi-wall paper bags, Southern Packaging LP has got what you need. Contact us today!

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